Building Code Requirements for Structural Concrete and Commentary

CHAPTER 19—SHELLS AND FOLDED PLATE MEMBERS ............................................................. 309
19.1—Scope and definitions ................................................................................................................................................309
19.2—Analysis and design...................................................................................................................................................311
19.3—Design strength of materials ......................................................................................................................................313
19.4—Shell reinforcement....................................................................................................................................................313
19.5—Construction ..............................................................................................................................................................315
CHAPTER 20—STRENGTH EVALUATION OF EXISTING STRUCTURES ...................................... 317
20.1—Strength evaluation—General ...................................................................................................................................317
20.2—Determination of required dimensions and material properties .................................................................................318
20.3—Load test procedure...................................................................................................................................................319
20.4—Loading criteria ..........................................................................................................................................................320
20.5—Acceptance criteria ....................................................................................................................................................320
20.6—Provision for lower load rating ...................................................................................................................................322
20.7—Safety ........................................................................................................................................................................322